000			00381pam a2200145a 44500
082			_aBTS _bMONO 2426
100			_aHorton,A W
245	1		_aTRANSMISSION OF DIGITAL INFORMATION OVER TELEPHONE CIRCUITES
260			_a _b _c1955
300			_a18
500			_aBound With Bts Mono 2401-25,2427-29.Lack No. 2407.
700			_aVaughan,H E
964			_gCIRC
997			_aTR20013 C
999			_c403189 _d403189